Super Rose Red

#cb1028

A red that is saturated. It is mid — the hardest range to put text on, either colour struggles.

Hex

#cb1028

RGB

203, 16, 40

OKLCh

53.5% 0.210 24.1°

CIELAB (D50)

43.9, 67.0, 41.8

What is true of this colour, and of no other

  • 14 other named colours sit within ΔE00 2 of it — this part of the space is crowded, and the names here are finer distinctions than most people make.
  • It uses 97% of the chroma sRGB can show at this lightness and hue — close enough to the boundary that a wider display would show it slightly more vividly.
  • As text on white it measures APCA Lc 76.5; on black, Lc -25.3. The sign is the polarity, which the WCAG ratio discards.
  • Built into an eleven-step scale, 10 of the 10 adjacent pairs stay ΔE00 2 apart — see the ramp.
  • protanopia and deuteranopia and tritanopia shift it by ΔE00 38.2 and 45.0 and 50.7 — no red cone.

Text on this colour

White text

5.76:1 — passes AA

Black text

3.64:1 — large text only

White text is the better of the two at5.76:1. That is enough for body text.

The same colour, with one cone missing

As you see it

#cb1028

protanopia

#4c4c2a · ΔE00 38.2

deuteranopia

#757516 · ΔE00 45.0

tritanopia

#949400 · ΔE00 50.7

Run a whole palette through all three

The twelve nearest named colours

Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isPhilippine Red at ΔE00 0.832: below 1.0 — an ordinary observer cannot tell these apart, even side by side. What the numbers mean.

8 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.